In diffraction the formula for minima is given by a . sind= ma, where a is the width of the slit, O is the angle of dispersion, m is the order, and 2 is the wavelength. For a wavelength of 630nm, m =1, and (=10". Calculate the width of the slit.In diffraction the formula for minima is given by a . sind = ml, where a is the width of the slit, O is the angle of dispersion, m is the order, and 1 is the wavelength. For a wavelength of 630nm, m =3, and a=5 . 10-. Calculate the angular spread.In diffraction the formula for minima is given by a . sind= ml, where a is the width of the slit, O is the angle of dispersion, m is the order, and 1 is the wavelength. For a wavelength of 630nm, 0=30", and a=5 . 10-6 Calculate the order of diffraction and approximate to closest integer